JCGrid is an easy-to-use tools for real-world grid-computing. It requires only to install Java Runtime and you can easy split your cpu-intensive task among several Workstations/PC/Mac/etc. It includes support for POVRay and MandelGrid as usage examples.

Spirits of Runeyard is a new concept of online graphics role playing game.
It's a game placed in a fantasy world between swords and magic, where every player can live a second life or simply enjoy to play a new type of gameplay.